mfd: Support dynamic allocation of IRQ range for wm831x

Use irq_allocate_desc() to get the IRQ range, which turns into a noop on
non-sparse systems. Since all existing users are non-sparse there should
be no compatibility issues.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/include/linux/mfd/wm831x/core.h b/include/linux/mfd/wm831x/core.h
index ebead1c401aa..9564cf315276 100644
--- a/include/linux/mfd/wm831x/core.h
+++ b/include/linux/mfd/wm831x/core.h
@@ -262,7 +262,7 @@ struct wm831x {
 
         int irq;  /* Our chip IRQ */
         struct mutex irq_lock;
-        unsigned int irq_base;
+        int irq_base;
         int irq_masks_cur[WM831X_NUM_IRQ_REGS];   /* Currently active value */
         int irq_masks_cache[WM831X_NUM_IRQ_REGS]; /* Cached hardware value */